I-rock drill isebenza ngokomgaqo wokutyumza impembelelo.Xa isebenza, i-piston yenza i-high-frequency reciprocating motion, ihlala ichaphazela i-shank.Phantsi kwentshukumo yamandla empembelelo, intwana ye-drill ebukhali emile okwe wedge ityumza ilitye kunye netshiseli kubunzulu obuthile, yenze...
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